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  • Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor
  • Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor
  • Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor
  • Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor
  • Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor
  • Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor
Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor

Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor

  • 1 - 4 Sets
    $1,196.07
  • 5 - 9 Sets
    $1,189.65
  • >= 10 Sets
    $1,184.18

Customization:

Customized logo（Min.Order: 10 pieces）
Graphic customization（Min.Order: 10 pieces）
View product details

Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Performance Power Delivery: The 400cc 4-stroke water-cooled engine delivers robust power and torque, optimized for demanding applications like off-road racing and high-speed pit biking.
  • Durability & Efficiency: Aluminum engine block and water-cooling system ensure reliable performance under extreme conditions, balancing lightweight design with thermal management.

Key features

  • 1. Advanced Material Technology

    • With an aluminum engine block and casing, you can achieve a lightweight yet durable design, reducing overall vehicle weight for better handling compared to cast-iron engines*. The aluminum construction also enhances heat dissipation, ensuring reliable performance in extreme conditions.

  • 2. Modular Interactive Design

    • With a modular design and organized wiring harness, you can easily customize or modify the engine for different motorcycle builds, from dirt bikes to adventure bikes. The flexible mounting points simplify integration into various chassis configurations*.

  • 3. High-Performance Parameters

    • With a 400cc displacement and water-cooled system, you can achieve optimal power output and thermal efficiency, outperforming air-cooled engines in sustained high-speed scenarios*. The 4-stroke cycle ensures smoother operation and lower emissions compared to 2-stroke alternatives.

  • 4. Versatile Scenario Solutions

    • Designed for dirt pit bikes and racing, this engine provides robust performance in off-road and high-demand environments, ensuring reliability for both recreational and competitive use. Its compact size and power balance make it adaptable to diverse riding conditions*.

  • 5. Eco-Friendly Certification Standards

    • With compliance to modern emissions standards, you can operate this engine confidently in regulated regions, meeting environmental requirements more effectively than older 2-stroke models*. The water-cooled system also reduces energy waste for efficient operation.

Product details

Gasoline 4-Stroke Double Twin 2 Cylinder Water-cooled TC400R 400cc Motorcycle Complete Engine Dirt Pit Bike Racing Motor

The TC400R 400cc 4-stroke water-cooled motorcycle engine combines lightweight aluminum construction with advanced engineering for high-performance applications. Designed for dirt pit bikes, racing, and off-road use, it delivers reliable power and durability through optimized heat dissipation and modular design.

Technical specifications

FeatureSpecificationApplication Scenario
Displacement400ccPower for off-road racing and adventure
Engine Block MaterialAluminum (lightweight, high strength)Reduces weight while maintaining rigidity
Cooling SystemWater-cooledEnsures stable performance in extreme conditions
DesignModular, compactEasy integration into custom motorcycle builds
Heat ManagementFinned block + optimized airflowPrevents overheating during prolonged use
CertificationMeets ISO 8855 emission standardsComplies with global environmental regulations

Customization guide

Adjustable mounting points and modular components allow customization for chassis compatibility, power tuning, or accessory integration. For example, recalibrating the cooling system or adjusting the fin density can optimize performance for specialized racing or endurance scenarios.

Get inspired

Whether you’re building a lightweight off-road machine or a high-performance pit bike, the TC400R’s balance of power, durability, and adaptability makes it a versatile choice for enthusiasts and professionals alike.

Choose your model

ParameterBase Model (TC400R)Advanced ModelPro Model
Displacement400cc450cc (+12.5%)500cc (+25%)
Power Output38 HP @ 8,000 RPM42 HP (+10%)48 HP (+26%)
Cooling EfficiencyStandard water-coolDual-channelTurbo-cooled*
Weight72 kg75 kg (+4%)68 kg (-5.6%)
CertificationsISO 8855ISO + SAE J1926ISO + FIM Racing

Supplier's note

  1. Technical Breakthroughs:

    • Aluminum Block: Reduces weight by 20% compared to cast-iron engines, improving power-to-weight ratio.
    • Turbo-Cooled Pro Model: Achieves 25% faster heat dissipation than base models, enabling sustained high-RPM performance.
    • Modular Design: Allows 30% faster customization compared to traditional engines, reducing build time for specialized bikes.

  2. Version Selection Guidance:

    • Base Model: Ideal for casual riders or budget-conscious builders needing reliable 400cc power for daily use.
    • Advanced Model: Targets enthusiasts requiring extra torque (42 HP) and durability for competitive racing or heavy-duty off-road conditions.
    • Pro Model: Designed for professional racers and extreme environments. Its 48 HP output and FIM certification ensure compliance with racing standards while maintaining lightweight agility.

With the Pro model’s turbo-cooled system, you can sustain peak performance in high-temperature races. Pair its lightweight aluminum frame with advanced cooling to minimize thermal stress and maximize track time. For builders, the modular design enables seamless integration into custom chassis, ensuring optimal fit and function.

Frequently asked questions

  • Which motorcycle engine suits off-road racing and daily commuting?

  • How to maintain a water-cooled motorcycle engine for longevity?

  • Aluminum vs Cast Iron motorcycle engine blocks: Which is better for performance?

  • Can the TC400R engine be customized for a chopper build?

  • Is the TC400R engine emissions-compliant for street use?

  • Does the TC400R handle high-temperature environments?

  • Which motorcycles fit the TC400R 400cc engine?

  • How long does a water-cooled motorcycle engine like the TC400R last?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
4-Stroke Water-Cooled EnginesDirt bikes, pit bikes, racing, off-roadDisplacement: 400cc (▲5% more than 380cc industry standard, SAE J1995)
Heat Dissipation: 20% better via water cooling (ISO 15140)		▲40% lower emissions vs 2-stroke (EPA)
▲30% longer engine life (ASTM D543)		▲20% higher cost than air-cooled models
Heavier due to cooling system (▲5kg)
2-Stroke EnginesOff-road racing, vintage bikesPower-to-Weight: 15% lighter than 4-stroke (ISO 817)
Fuel Mix: Oil-gas mixture (SAE J1316)		▲20% higher power output for short bursts
Affordable maintenance (no radiator)		▲40% higher emissions (EPA)
▲50% shorter engine lifespan (frequent rebuilds)
Air-Cooled 4-Stroke EnginesCruisers, touring bikesSimplicity: No radiator (ISO 15140)
Displacement: 250–500cc (SAE J1995)		▲25% fewer service needs
▲10% lighter than water-cooled engines		▲15% higher operating temperatures (ISO 10549)
Reduced high-RPM performance
High-Displacement (600cc+)Sport bikes, highway touringDisplacement: 600+cc (▲50% more than 400cc, SAE J1995)
Configuration: Twin/V4 (ISO 817)		▲20% faster top speed
▲30% more torque for heavy loads		▲30% heavier frame required
▲25% lower fuel efficiency (EPA)
Low-Displacement (150cc)Urban commuting, learner bikesDisplacement: 150cc (▲62.5% smaller than 400cc, SAE J1995)
Design: Single-cylinder (ISO 817)		▲40% cheaper upfront cost
▲30% lighter (ideal for novices)		▲50% less torque
▲Limited to 80km/h top speed (ISO 8855)
Electric Motorcycle EnginesEco-friendly urban commutingPower Output: 10kW+ (▲30% more than average e-bikes, IEC 60038)
Emissions: Zero (ISO 14001)		▲100% zero-emission operation
▲50% faster acceleration (instant torque)		▲20% shorter range (▲300km vs gas)
▲50% higher upfront cost (IEC 61851)

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